Year annual % growth 1976 10.600402793320441 1977 8.781187992041552 1978 12.723836024730034 1979 12.464794021716187 1980 1.969613168720329 1981 -1.8984545404688191 1982 -4.795792670262031 1983 -6.6682423346851465 1984 7.283951211354207 1985 17.243515407222603 1986 6.925883253253275 1987 0.19300125486270758 1988 8.976015255883098 1989 25.158438515392874 1990 22.397769085672508 1991 9.964137140165818 1992 -1.2821682483860428 1993 -2.3501223400197944 1994 2.351739941237227 1995 16.94074631336207 1996 5.42656772506291 1997 13.450797107822638 1998 2.086714970931496 1999 0.03930889822756001 2000 -1.2996152192040995 2001 -4.4623760264179 2002 4.953167486099531 2003 1.33197051460958 2004 3.075817374579586 2005 10.775476939623758 2006 17.248073976434995 2007 8.847120752342292 2008 11.427538064292307 2009 5.055217575522448 2010 7.374131884749644 2011 5.1629154788398495 2012 8.452815199638891 2013 8.129073318819337 2014 2.0730802707636684 2015 3.5640115053347614 2016 2.5709057702492544 2017 1.437394971812168 2018 5.365056276678914 2019 3.1430097852278323 2020 2.335154588350008 2021 2.500062180580727 2022 3.054887487154872 2023 5.615386736292649